“Headright System”的概念、定义、翻译、参考文献-科学参考

单词	Headright System
释义	Headright System Encyclopedia 历史学美国历史释 Headright System人头权利制 17～18世纪英属北美殖民地旨在吸引移民前来北美的土地分配制度。
随便看	planetary gear drive planetary geodesy planetary geology planetary interior or planetary internal structure planetary/interplanetary probe planetary ionosphere planetary magnetic field planetary magnetosphere planetary-mass companion planetary-mass object planetary meteorology planetary mill planetary motion planetary nebula planetary nomenclature planetary nutation terms planetary occultation planetary occultation of star planetary orbit planetary orbital elements planetary perturbation planetary photogrammetry planetary physics planetary plasmasphere planetary precession

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。